Portable derrick.



BEST AVAILABLE COP D. OTTO.

PORTABLE DERRICK.

APPLICATION FILED 1330.26.1903. RENEWED BEPT. 1, 1905.

2 SHEETS-SHEET 1.

if WMLM filttowws PATENTED 001?. a, 1905.

BEST AVAILABLE COP No. 800,672. PATENTED OCT. 3, 1905. D. OT-TQ.

PORTABLE DERRICK.

AYPLICATION FILED DEC. 26,1903. RENEWED SEPT. 1,1905.

2 SHEETS-SHEET 2.

BEST AVAILABLE cor UNITED STATES PATENT OFFICE.

DANIEL OTTO, o F BLOOMINGTON, ILLINOIS, ASSIGNOR TO JOHN F. WHITE, orBLOOMINGTON. ILLINOIS.

-PORTABLE DERRICK.

Specification of Letters Patent.

Patented Oct. 3, 1905.

Application filed December 26, 1903. Renewed September 1,1905. SerialNo. 276,771-

'0 ME whom, it rnrty concern:

Be it known that I, DANIEL OTTO, acitizen f the United States, residingat Bloomingon, in the county of McLean and State of ,llinois, haveinvented'certain new and useful improvements in Portable Derricks, ofwhich he following is a specification, referencebehg had therein to theaccompanying drawings. i This invention relates to an improvement nportable derricks for grain-elevators, and sdesigned more particularlyfor use in coniection with that type of grain-elevators hich is initself portable and designed to reeive grain from a wagon and elevatethe ame toa bin or.otherdepository. The present invention contemplates astrucure which is so fashioned that in the act of iransporting theelevator the derrick as such lnay'in' part serve as a vehicle onto whichthe elevator is deposited for transportation and also a constructionwhereby with facility the lerrick can be raised properly positioned andhereafter the elevator drawn up to theproper nclination. .uch acharacter that its structural arrangenents and connections are such asto render t light, strong, and convenient for handling ind transporting.

In the accompanying drawings, Figure 1 llustrates the invention inelevation. Fig. 2 s a rear view. Fig. 3 is a view similar to Tig. 1,showing the parts lowered; and Fig. i is a similar view showingthe-parts in posi- .ion for transportation.

A in the drawings designates a base mem- )6! or shaft, carrying on itsouter end suit' tble truck-wheels B. Secured to this shaft A are twouprights CC. converging toward their upper ends and there firmly united,a pmall cross-bar being interposed between the extreme ends. Theseuprights may be traced by suitable parallel upright braces D 1),springing from the shaft A and connected @ixedly to the sides of theuprights G G at points intermediate the ends of the latter.

E E designate diagonals connected to the upright braces D' D midway andextending forward, their extreme lower Iends being formed with curvedportions, as at E and )rovided with seats or supporting-blocks E Therunner or curved edges of the diagonals E E are positioned on a planewith the wheels B. Extending from the diagonals E E rearwardly "irethebraces, F F, their forward ends being Incidentally, the invention isof rcinovably connected to the lower ends of the upright braces D D,thus forming in the combination a truss structure rendering the derrickrigid and maintaining it in its elevated position. These bars or bracesare conveniently formed with a series of apertures f, through which theconnecting-pinf' may be passed, connecting the same removably with theaxle or shaft A through the bases of the upright braces D D. By thismeans -the derrick-proper can be varied as to its inclina tion.

G designates the elevator,having the pivoted drag H thereon of anyapproved or well-known type. supporting-blocks E of the diagonals E E inany convenient manner, conveniently by the operating-shaft S, as shown.In this connection suitable boxes are to be employed, although it ismanifest that any suitable means for supporting the elevator on thelower end of the diagonals may be used. The upper end of the elevatorcarries a bail J, to which a suitable hoisting-rope K is attached, thesame passing over pulley-blocks supported by the short cross-bar at theupper end of the derrick. The supporting-rope in turn is carried downinto operative position.

In operation the elevator when adjusted for use is in the position shownin Fig. 1, the lower portion resting on the diagonals and the upperportion being carried by the derrick proper. can by proper manipulationof the rope be adjusted to any convenient angle or lowered to theposition shown in Fig. 3 for transportation. When the elevator islowered. the drag is turned back onto the same, the braces F F areuncoupledfrom the upright braces D D, and the wheeled axle is thereuponturned or moved backward, the pivotal point between the diagonals andthe braces serving as the center around which the axle may turn. Thisact lowers the uprightderrick-members, carrying the lower ends towardthe rear and the upper ends down on the outer end of the elevator, asshown in Fig. 4. In this position by applying the draft power to eitherend of the derrick the same can be readily transported from place toplace.

From the above-described construction, it

The elevator is supported on the In this position the elevator.

will be observed that the portable derrick comprises, essentially, twoframes, one consisting of the upright braces and the other of is claimedas new, and desired to be secured by Letters Patent, is

1. In a portable derrick for portable elevators, the combination with aderrick having suitable wheels at its lower end, of forwardlyextendingmembers pivotally connected with the derrick, and a brace located belowthe forwardly-extending members and removably connecting the derrick andthe forwardly-extending members.

2. In a portable derrick for grain-elevators, the combination with ashaft, of. derrickuprights secured thereto, diagonal members extendingtherefrom, their lower ends being fashioned to receive the lower end ofthe elevator, detachable braces between the diagonalsand the uprights,and an-elevator, substantially as described. I

In a portable derrick for portable elevators, the combination of awheel-shaft, of a m BEST AVAILABLE cor ing from the derrick, adetachable brace interposed between the derrick member and the diagonalmembers, an elevator, and means connected with the derrick for raisingand lowering the elevator,

4. In a portable derrick for portable elevators, the combination with awheel-shaft, of inclined derrick members carried thereby, parallelbraces between the inclined members, diagonal supporting membersextending from the parallel braces forward, and removable brace membersbetween the diagonal members and the shaft.

5. A portable derrick for portable eleva tors comprising a derrickmember and forwardly-extending supporting members, a

shaftto which the said members are con nected respectively, a bracemember detach ably connecting the said other two members, andan-elevator carried by the derrick.

6. In a portable derrick for portable elevators, two frames arranged atan angle to each other and pivotally associated so that the same can befolded, and a detachable brace member between the frames and adjustablyconnected to one of the frames. l

In testimony whereof Iaflix my signature in presence of two witnesses.

DANIEL OTTO.

Witnesses:

I. M. CHURCHILL, G. L. HORN.

